Exam-style question
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What is the effect of increasing the tube current in an X-ray tube on the X-ray beam produced?.
- A.Increases the energy of the X-rays
- B.Decreases the energy of the X-rays
- C.Increases the number of X-ray photons produced
- D.Decreases the number of X-ray photons produced
Model answer
What a good answer should say
- Increases the number of X-ray photons produced
Explanation
Why this works
Increasing the tube current in an X-ray tube results in more electrons being emitted and subsequently more X-ray photons being produced. This leads to a higher intensity of the X-ray beam without changing the energy of the individual photons.
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